Radiator for automobiles.



J. Li. LEWIS.

RADIATOR. FOR AUTOMOBILES. AILABLE I APPLICATION FILED FEB. 25, 1909.

940,976. Patented Nov.23,'1909.

@i firji I We hwaoeo rrn STATES PATENT OFFICE.

JOSEPH E. LEWIS, OF HARTFORD, CONNECTICUT, ASSIGNOR TO BUSH MANUFACTUR- ING COMPANY, OF HARTFORD, CONNECTICUT.

I RADIATOR FOR AUTOMOBILES.

To all whom it may concern:

Be it known that I, J OSEPH E. Lnwrs, a

citizen of the United States, residing at the cooling means.

Hartford, in the county of Hartford and State of Connecticut, have invented certain new and useful Improvements in Radiators for Automobiles, of which the following is a specification.

This invention relates to radiators for automobiles of the type embodying upper and lower water chambers connected by vertical tubes provided with radiating fins.

The aim of the invention is to produce a radiator of the highest efiiciency, one em-- bodying a construction including as few joints as possible and thereby obviating the likelihood of leakage, and adapted for allkinds of service on touring cars or commercial vehicles, operated either with pump or by the thermo-siphon system.

For a full understanding of the invention,

reference is to be had to the following detail" description and the accompanying drawings, in which Figure 1 is a fragmentary view, a front elevation showing aradiator embodying the invention; Fig. 2 is a section taken about on the line 22 of Fig. 1; Fig. 3 is a horizontal section of two heat diffusing units which along with others form the body of the radiator; Fig. 4 is a reduced vertical section, on the line ll of Fig. 3, broken away bringing out more clearly the manner of attaching the fins to the tubes; Fig. 5 is a perspective view more clearly showing the form of the radiating fins and manner of attachment of the tubes and spacing strips.

Throughout the following detail description and on the several figures of the drawings similar parts are referred to by like reference characters.

Referring to the drawings it will be observed that the radiator comprising the invention embodies an upper water chamber A, a lower water chamber B, said chambers being connected by the side plates C in a peculiar manner to be hereinafter described. The radiating body which forms the essential feature of the invention is of the vertical tube and fin type and comprises a plurality of heat diffusing or radiating units assembled in an especially advantageous manner, in order to promote the efliciency of Each of the radiating units comprising the body D, and as shown Specification of Letters Patent.

Application filed February 25, 1909.

Patented Nov. 23, 1909.

Serial No. 480,002.

I in Fig. 3 at E, consists of a plurality of vertical fiat tubes 3 upon which are strung, so

to speak, the horizontal fins 4 made of thin sheet metal. The upper ends of the tubes 3 of each unit pass through openings in the tube sheet 1 which forms a side or bottom for the water chamber A, the tubes being connected with the tube sheet 1 by having vertical flanges shown at 3 drawn up around the end of each tube and soldered thereto to provide a strong joint.

The fins 4 are applied to the tubes 3 of each unit E by punching out elongated openings in the fins, the punching operation forming edge flanges l for the openings and said flanges are soldered to the tubes to firmly join the fins thereto. In the punching operation providing the fins with the tube openings, said fins are also punched out to form a plurality of smaller openings 6 at the edges of which are the projections, shown mostclearly in Fig. 5. The openings 6 in the fins 4: of each heating unit are of course in vertical alinement facilitating the passage of air through and around the fins and by which the latter are eooled.

lVhen the radiating units E are assembled in a complete radiator, they are connected together by means of vertical connecting and spacing strips 5 united by soldering, or in any suitable way, to the side edges of the fins of the units, at the front and rear ends of said units.

The upper water chamber is provided with the side extensions A inclining downwardly therefrom, said extensions embodying front and rear plates 2 provided at their upper edges with lateral flanges received by the recurved edges A of the top sheet of the water chamber A. The lower inclined edges of the plates 2 are formed-with upwardly extending flanges 2 which are recurved in a downward direction to receive and interlock with vertical edge flanges of the tube sheet 1 which constitutes the bottom of the chamber A. The flanges of the front and rear side plates 2 are of course united with the tube sheet 1 and the top of the water chamber by means of soldering, but the peculiar formation of the joints conduces to the provision of a rigid tank structure which is of importance.

The plates 2 extend above and behind the front and rear plates of the upper portion of the Water chamber A, as shown in dotted lines in Fig. 1, and said plates 2 extend below and behind the upper extremities of the sides C, being soldered to these parts. That is to say, the plates 2 lap over plates A and G forming a soldered lap joint which is stronger than would be a oint made by butting the edges of the plates 2 against the edges of the front and rear plates of the members A and C. It will also be observed that since the plates 2 lap back of the front and rear plates of A and 0, space is allowed to set in the facing plates 8 at front and rear flush with the front and rear plates of A and C, with the edges of 8 butted against the edges of the front and rear plates of A and C at 8 and 8. This gives a smooth and continuous front and rear surface including the tanks A and A and the side members C. It also, provides a means of covering the irregular edges of the fins at the inclined sides and facilitates the making of a curved inner edge where the front and rear plates of A join the facing plates 8 and S.

Having thus described the invention, what is claimed as new is:

1. An automobile radiator comprising upper and lower water chambers and side members connecting said chambers, a heat radiating body, the upper water chamber having ownwardly inclined extensions at opposite sides thereof, said extensions comprising a tube sheet connected with the radiating body and having upturned edge flanges, front and rear downwardly inclined side plates provided at their lower edges with upturned flanges recurved to receive the flanges of the tube sheet and to intGTlOCk therewith, the upper edges of said side plates being formed with lateral flanges interlocking with the top sheet of the upper water chamber, and facing plates inclined to correspond with the inchnation of the extensions of the upper water chamber and so attached to the front and rear side plates before mentioned as to extend at the lower edges below said side plates and to overlap the radiating body. w

2. An automobile radiator comprising upper and lower water chambers and side members connecting said chambers, a heat radiating body, the upper water chamber having extensions at the opposite sides thereof extending diagonally downward, the front and rear walls of said extensions lapping by and behind the front and rear walls of the main portion of the top water chamber where they connect with said chambers at their upper extremities, and facing plates at front and rear covering the front and rear walls of the said diagonal extensions and having their outer surfaces flush with the outer surfaces of the front and rear walls of the main portion of the upper water chamber, and their lower edges extending below the lower edges of the front and rear walls of the diagonal side extensions of the upper water chamber, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

JOSEPH E. LElVIS.

Witnesses PHILIP M. BUSH, CHARLES W. CooKsLnY. 

